Books, Brochures, and Chapters>Book:  Chamberlain, Alexander Francis (201411), The Child: A Study in the Evolution of Man (Classic Reprint), Retrieved on 2018-07-27

Electronic/World Wide Web>Internet Article:  Welsh, Jennifer (29 March 2011 Time: ), Article: Breast-Feeding Fuels Babies' Big Brains, LiveScience, Retrieved on 2011-03-30

Source Material [www.livescience.com]

Electronic/World Wide Web>Internet Article:  Yeh, BS, Rochette, PhD, McKenzie, PhD, MA, Smith, MD, DrPH (February 17, 2011), Injuries Associated With Cribs, Playpens, and Bassinets Among Young Children in the US, 1990–2008, Pediatrics, Retrieved on 2011-02-17

Source Material [pediatrics.aappublications.org]